Jon Jones Spars Boxing Champ Holly Holm (Video)

Preparing for his upcoming title defense against Lyoto Machida at UFC 140 on Dec. 10 in Toronto, UFC light heavyweight champion Jon Jones has been doing some sparring with world boxing champion Holly Holm. She is also preparing for a fight. Holm faces Anne Sophie Mathis on Dec. 2 in Albuquerque, N.M.